package collectionzy;

import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.Random;

public class zy0203 {
    public static void main(String[] args) {
        Random rand = new Random();
        List<Integer> list = new ArrayList<>();
        for (int i=0;i<10;i++){
            list.add(rand.nextInt(100));
        }
        System.out.println("list原始数据："+list);

        Collections.sort(list);
        System.out.println("list排序后数据"+list);

        Collections.reverse(list);
        System.out.println("list反转后数据"+list);
        System.out.println("第一个元素为："+list.get(0));



//        Random rand = new Random();
//        List<Integer> list = new ArrayList<>();
//        for (int i=0;i<10;i++){
//            list.add(rand.nextInt(100));
//        }
//        System.out.println("list原始数据："+list);
//
//        Collections.sort(list);
//        System.out.println("list排序后数据"+list);
//
//        Collections.reverse(list);
//        System.out.println("list反转后数据"+list);
//        System.out.println("第一个元素为："+list.get(0));
    }

}
